Claude Opus 5.5
From AI model API prices: What do the leading AI models cost through their APIs, per million tokens?
Input: 4 USD per 1M tokens
The standard price for input tokens. Where the provider charges by time of day, the peak price.
Claude Opus 5.5 For long-running agentic coding and knowledge work $4 / MTok $20 / MTok
Source: https://platform.claude.com/docs/en/about-claude/pricing. Read 2026-10-31. Checked by a second reader.
Output: 20 USD per 1M tokens
The standard price for output tokens. Where the provider charges by time of day, the peak price.
Claude Opus 5.5 For long-running agentic coding and knowledge work $4 / MTok $20 / MTok
Source: https://platform.claude.com/docs/en/about-claude/pricing. Read 2026-10-31. Checked by a second reader.